Gene effects for downy mildew (Sclerospora graminicola) resistance in pearl millet

Dass, S. and Kapoor, R.L. and Paroda, R.S. and Jatasra, D.S. (1984) Gene effects for downy mildew (Sclerospora graminicola) resistance in pearl millet. Indian Journal of Genetics and Plant Breeding, 44 (2). pp. 280-285.

| Preview


Gene effects for downy mildew resistance were estimated by the analysis of generation means of six populations (P1, P2, f1, f2, B1, B2,) in two pearl millet crosses under two environmental conditions. Substantial hybrid vigour for downy mildew resistance was observed. Inbreeding depression was also noticed. Downy mildew resistance was found to be dominant over susceptibility. Both additive and dominant gene effects governed downy mildew prevalence and infection index. However, dominance effects played predominant role in the inheritance of these traits. Digenic interactions were also detected and complementry epistatic effects contributed maximum to the total genetic variability for downy mildew resistance. Development of synthetics or composites as well as population improvement by recurrent selection have been suggested as possible approaches for breeding downy mildew resistant cultivars in pearl millet

Item Type: Article
Author Affiliation: 1Department of Plant Breeding, Haryana Agricultural University, Hissar-125 004
Subjects: Plant Protection
Crop Improvement > Genetics/Genomics
Crop Improvement > Plant Breeding
Divisions: Millet
Depositing User: Ms K Syamalamba
Date Deposited: 26 Nov 2012 06:16
Last Modified: 26 Nov 2012 06:16

Actions (login required)

View Item View Item